Thank you for the question.
We actually evaluate the situations every three years. It's on a cyclical basis. The deadline for the risk assessment is later this May. That will inform Transport Canada on how CN has identified and accounted for the risks and what remedial measures are in place.
Even from a proactive perspective, under those key trains and key roads rules there are reduced speed limits imposed on trains travelling through this area, as well as the requirements for increased track inspections in order to mitigate risks.